交互式的matlab plot绘图工具,绘制二维三维图形.-QPLOT interactive ploting program Qplot opens a standadr MATLAB figure with three options added to the menu bar: Qfile, Qoptions and Qgraph. Under Qfile you can read data files (text or Excel). Under Qoptions you can

Assume that a direct sequence spread spectrum system uses the Barker code of length 7 (N=7) as its spreading sequence. a. Randomly generate 8 symbols (d0~d7) from the set {+1,-1}. b. If each chip of the Barker code is denoted as cj, j=0~6, spread

计算并绘制图像的直方图，本设计中绘制了四种形式的直方图，imhist,bar,stem,plot进行比较和区别！-Calculated and plotted the histogram of the image, the design of four forms of the histograms drawn, imhist, bar, stem, plot and compare the difference!

在MATLAB中表示信号的常规格式是向量或者矩阵。本示例中利用randint 函数来产生一个表示二进制数据序列连续值的列向量。其中二进制数据序列的长度（即为列向量中的行数）设置为30,000。 下面的代码同时还绘制了数据序列的杆图（stem plot），用来显示数据的0、1值。你所产生的图可能与次示例中的图有一点不一样，这是因为本示例中应用了随机数。 -Said signal in MATLAB conventional format is a vector or matrix. In